2002-02-16 04:19:24 +03:00
|
|
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
|
|
*
|
|
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
|
|
* the License. You may obtain a copy of the License at
|
|
|
|
* http://www.mozilla.org/MPL/
|
|
|
|
*
|
|
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
|
|
* for the specific language governing rights and limitations under the
|
|
|
|
* License.
|
|
|
|
*
|
|
|
|
* The Original Code is frightening to behold.
|
|
|
|
*
|
|
|
|
* The Initial Developer of the Original Code is
|
|
|
|
* Jonas Sicking.
|
|
|
|
* Portions created by the Initial Developer are Copyright (C) 2001
|
|
|
|
* the Initial Developer. All Rights Reserved.
|
|
|
|
*
|
|
|
|
* Contributor(s):
|
|
|
|
* Jonas Sicking <sicking@bigfoot.com>
|
|
|
|
*
|
|
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
|
|
* the provisions above, a recipient may use your version of this file under
|
|
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
|
|
*
|
|
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
|
|
|
|
/**
|
|
|
|
* The multiplex stream concatenates a list of input streams into a single
|
|
|
|
* stream.
|
|
|
|
*/
|
|
|
|
|
2010-10-21 22:36:13 +04:00
|
|
|
#include "IPC/IPCMessageUtils.h"
|
2010-10-14 22:21:48 +04:00
|
|
|
#include "mozilla/net/NeckoMessageUtils.h"
|
2010-10-21 22:36:13 +04:00
|
|
|
|
2002-02-16 04:19:24 +03:00
|
|
|
#include "nsMultiplexInputStream.h"
|
|
|
|
#include "nsIMultiplexInputStream.h"
|
|
|
|
#include "nsISeekableStream.h"
|
2006-01-02 05:30:32 +03:00
|
|
|
#include "nsCOMPtr.h"
|
|
|
|
#include "nsCOMArray.h"
|
2010-10-21 22:36:13 +04:00
|
|
|
#include "nsIIPCSerializable.h"
|
|
|
|
#include "nsIClassInfoImpl.h"
|
2002-02-16 04:19:24 +03:00
|
|
|
|
|
|
|
class nsMultiplexInputStream : public nsIMultiplexInputStream,
|
2010-10-21 22:36:13 +04:00
|
|
|
public nsISeekableStream,
|
|
|
|
public nsIIPCSerializable
|
2002-02-16 04:19:24 +03:00
|
|
|
{
|
|
|
|
public:
|
|
|
|
nsMultiplexInputStream();
|
|
|
|
|
|
|
|
NS_DECL_ISUPPORTS
|
|
|
|
NS_DECL_NSIINPUTSTREAM
|
|
|
|
NS_DECL_NSIMULTIPLEXINPUTSTREAM
|
|
|
|
NS_DECL_NSISEEKABLESTREAM
|
2010-10-21 22:36:13 +04:00
|
|
|
NS_DECL_NSIIPCSERIALIZABLE
|
2002-02-16 04:19:24 +03:00
|
|
|
|
|
|
|
private:
|
2004-01-15 09:14:18 +03:00
|
|
|
~nsMultiplexInputStream() {}
|
|
|
|
|
2002-02-16 04:19:24 +03:00
|
|
|
struct ReadSegmentsState {
|
|
|
|
nsIInputStream* mThisStream;
|
|
|
|
PRUint32 mOffset;
|
|
|
|
nsWriteSegmentFun mWriter;
|
|
|
|
void* mClosure;
|
|
|
|
PRBool mDone;
|
|
|
|
};
|
|
|
|
|
|
|
|
static NS_METHOD ReadSegCb(nsIInputStream* aIn, void* aClosure,
|
|
|
|
const char* aFromRawSegment, PRUint32 aToOffset,
|
|
|
|
PRUint32 aCount, PRUint32 *aWriteCount);
|
|
|
|
|
2006-01-02 05:30:32 +03:00
|
|
|
nsCOMArray<nsIInputStream> mStreams;
|
2002-02-16 04:19:24 +03:00
|
|
|
PRUint32 mCurrentStream;
|
|
|
|
PRBool mStartedReadingCurrent;
|
2006-01-02 05:30:32 +03:00
|
|
|
nsresult mStatus;
|
2002-02-16 04:19:24 +03:00
|
|
|
};
|
|
|
|
|
2010-10-21 22:36:13 +04:00
|
|
|
NS_IMPL_THREADSAFE_ADDREF(nsMultiplexInputStream)
|
|
|
|
NS_IMPL_THREADSAFE_RELEASE(nsMultiplexInputStream)
|
|
|
|
|
|
|
|
NS_IMPL_CLASSINFO(nsMultiplexInputStream, NULL, nsIClassInfo::THREADSAFE,
|
|
|
|
NS_MULTIPLEXINPUTSTREAM_CID)
|
2002-02-16 04:19:24 +03:00
|
|
|
|
2010-10-21 22:36:13 +04:00
|
|
|
NS_IMPL_QUERY_INTERFACE4_CI(nsMultiplexInputStream,
|
|
|
|
nsIMultiplexInputStream,
|
|
|
|
nsIInputStream,
|
|
|
|
nsISeekableStream,
|
|
|
|
nsIIPCSerializable)
|
|
|
|
NS_IMPL_CI_INTERFACE_GETTER4(nsMultiplexInputStream,
|
|
|
|
nsIMultiplexInputStream,
|
|
|
|
nsIInputStream,
|
|
|
|
nsISeekableStream,
|
|
|
|
nsIIPCSerializable)
|
2002-02-16 04:19:24 +03:00
|
|
|
|
|
|
|
nsMultiplexInputStream::nsMultiplexInputStream()
|
|
|
|
: mCurrentStream(0),
|
2006-01-02 05:30:32 +03:00
|
|
|
mStartedReadingCurrent(PR_FALSE),
|
|
|
|
mStatus(NS_OK)
|
2002-02-16 04:19:24 +03:00
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
/* readonly attribute unsigned long count; */
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsMultiplexInputStream::GetCount(PRUint32 *aCount)
|
|
|
|
{
|
2006-01-02 05:30:32 +03:00
|
|
|
*aCount = mStreams.Count();
|
2002-02-16 04:19:24 +03:00
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* void appendStream (in nsIInputStream stream); */
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsMultiplexInputStream::AppendStream(nsIInputStream *aStream)
|
|
|
|
{
|
2006-01-02 05:30:32 +03:00
|
|
|
return mStreams.AppendObject(aStream) ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
|
2002-02-16 04:19:24 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
/* void insertStream (in nsIInputStream stream, in unsigned long index); */
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsMultiplexInputStream::InsertStream(nsIInputStream *aStream, PRUint32 aIndex)
|
|
|
|
{
|
2006-01-02 05:30:32 +03:00
|
|
|
PRBool result = mStreams.InsertObjectAt(aStream, aIndex);
|
|
|
|
NS_ENSURE_TRUE(result, NS_ERROR_OUT_OF_MEMORY);
|
2002-02-16 04:19:24 +03:00
|
|
|
if (mCurrentStream > aIndex ||
|
|
|
|
(mCurrentStream == aIndex && mStartedReadingCurrent))
|
|
|
|
++mCurrentStream;
|
2006-01-02 05:30:32 +03:00
|
|
|
return NS_OK;
|
2002-02-16 04:19:24 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
/* void removeStream (in unsigned long index); */
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsMultiplexInputStream::RemoveStream(PRUint32 aIndex)
|
|
|
|
{
|
2006-01-02 05:30:32 +03:00
|
|
|
PRBool result = mStreams.RemoveObjectAt(aIndex);
|
|
|
|
NS_ENSURE_TRUE(result, NS_ERROR_NOT_AVAILABLE);
|
2002-02-16 04:19:24 +03:00
|
|
|
if (mCurrentStream > aIndex)
|
|
|
|
--mCurrentStream;
|
|
|
|
else if (mCurrentStream == aIndex)
|
|
|
|
mStartedReadingCurrent = PR_FALSE;
|
|
|
|
|
2006-01-02 05:30:32 +03:00
|
|
|
return NS_OK;
|
2002-02-16 04:19:24 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
/* nsIInputStream getStream (in unsigned long index); */
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsMultiplexInputStream::GetStream(PRUint32 aIndex, nsIInputStream **_retval)
|
|
|
|
{
|
2006-01-02 05:30:32 +03:00
|
|
|
*_retval = mStreams.SafeObjectAt(aIndex);
|
|
|
|
NS_ENSURE_TRUE(*_retval, NS_ERROR_NOT_AVAILABLE);
|
|
|
|
|
|
|
|
NS_ADDREF(*_retval);
|
|
|
|
return NS_OK;
|
2002-02-16 04:19:24 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
/* void close (); */
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsMultiplexInputStream::Close()
|
|
|
|
{
|
2006-01-02 05:30:32 +03:00
|
|
|
mStatus = NS_BASE_STREAM_CLOSED;
|
|
|
|
|
2002-02-16 04:19:24 +03:00
|
|
|
nsresult rv = NS_OK;
|
|
|
|
|
2006-01-02 05:30:32 +03:00
|
|
|
PRUint32 len = mStreams.Count();
|
|
|
|
for (PRUint32 i = 0; i < len; ++i) {
|
|
|
|
nsresult rv2 = mStreams[i]->Close();
|
2002-02-16 04:19:24 +03:00
|
|
|
// We still want to close all streams, but we should return an error
|
|
|
|
if (NS_FAILED(rv2))
|
|
|
|
rv = rv2;
|
|
|
|
}
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* unsigned long available (); */
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsMultiplexInputStream::Available(PRUint32 *_retval)
|
|
|
|
{
|
2006-01-02 05:30:32 +03:00
|
|
|
if (NS_FAILED(mStatus))
|
|
|
|
return mStatus;
|
|
|
|
|
2002-02-16 04:19:24 +03:00
|
|
|
nsresult rv;
|
2006-01-02 05:30:32 +03:00
|
|
|
PRUint32 avail = 0;
|
2002-02-16 04:19:24 +03:00
|
|
|
|
2006-01-02 05:30:32 +03:00
|
|
|
PRUint32 len = mStreams.Count();
|
|
|
|
for (PRUint32 i = mCurrentStream; i < len; i++) {
|
2002-02-16 04:19:24 +03:00
|
|
|
PRUint32 streamAvail;
|
2006-01-02 05:30:32 +03:00
|
|
|
rv = mStreams[i]->Available(&streamAvail);
|
2002-02-16 04:19:24 +03:00
|
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
avail += streamAvail;
|
|
|
|
}
|
|
|
|
*_retval = avail;
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* [noscript] unsigned long read (in charPtr buf, in unsigned long count); */
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsMultiplexInputStream::Read(char * aBuf, PRUint32 aCount, PRUint32 *_retval)
|
|
|
|
{
|
2006-01-02 05:30:32 +03:00
|
|
|
// It is tempting to implement this method in terms of ReadSegments, but
|
|
|
|
// that would prevent this class from being used with streams that only
|
|
|
|
// implement Read (e.g., file streams).
|
|
|
|
|
2003-01-29 09:40:16 +03:00
|
|
|
*_retval = 0;
|
2002-02-16 04:19:24 +03:00
|
|
|
|
2006-01-02 05:30:32 +03:00
|
|
|
if (mStatus == NS_BASE_STREAM_CLOSED)
|
|
|
|
return NS_OK;
|
|
|
|
if (NS_FAILED(mStatus))
|
|
|
|
return mStatus;
|
|
|
|
|
|
|
|
nsresult rv = NS_OK;
|
|
|
|
|
|
|
|
PRUint32 len = mStreams.Count();
|
2003-01-29 09:40:16 +03:00
|
|
|
while (mCurrentStream < len && aCount) {
|
2006-01-02 05:30:32 +03:00
|
|
|
PRUint32 read;
|
|
|
|
rv = mStreams[mCurrentStream]->Read(aBuf, aCount, &read);
|
2003-01-29 09:40:16 +03:00
|
|
|
|
|
|
|
// XXX some streams return NS_BASE_STREAM_CLOSED to indicate EOF.
|
2006-01-02 05:30:32 +03:00
|
|
|
// (This is a bug in those stream implementations)
|
2003-01-29 09:40:16 +03:00
|
|
|
if (rv == NS_BASE_STREAM_CLOSED) {
|
2006-01-02 05:30:32 +03:00
|
|
|
NS_NOTREACHED("Input stream's Read method returned NS_BASE_STREAM_CLOSED");
|
2003-01-29 09:40:16 +03:00
|
|
|
rv = NS_OK;
|
|
|
|
read = 0;
|
2002-02-16 04:19:24 +03:00
|
|
|
}
|
2003-01-29 09:40:16 +03:00
|
|
|
else if (NS_FAILED(rv))
|
|
|
|
break;
|
|
|
|
|
|
|
|
if (read == 0) {
|
2002-02-16 04:19:24 +03:00
|
|
|
++mCurrentStream;
|
|
|
|
mStartedReadingCurrent = PR_FALSE;
|
|
|
|
}
|
|
|
|
else {
|
2003-01-29 09:40:16 +03:00
|
|
|
NS_ASSERTION(aCount >= read, "Read more than requested");
|
|
|
|
*_retval += read;
|
|
|
|
aCount -= read;
|
|
|
|
aBuf += read;
|
2002-02-16 04:19:24 +03:00
|
|
|
mStartedReadingCurrent = PR_TRUE;
|
|
|
|
}
|
|
|
|
}
|
2003-01-29 09:40:16 +03:00
|
|
|
return *_retval ? NS_OK : rv;
|
2002-02-16 04:19:24 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
/* [noscript] unsigned long readSegments (in nsWriteSegmentFun writer,
|
|
|
|
* in voidPtr closure,
|
|
|
|
* in unsigned long count); */
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsMultiplexInputStream::ReadSegments(nsWriteSegmentFun aWriter, void *aClosure,
|
|
|
|
PRUint32 aCount, PRUint32 *_retval)
|
|
|
|
{
|
2006-01-02 05:30:32 +03:00
|
|
|
if (mStatus == NS_BASE_STREAM_CLOSED) {
|
|
|
|
*_retval = 0;
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
if (NS_FAILED(mStatus))
|
|
|
|
return mStatus;
|
|
|
|
|
2002-02-16 04:19:24 +03:00
|
|
|
NS_ASSERTION(aWriter, "missing aWriter");
|
|
|
|
|
2003-01-29 09:40:16 +03:00
|
|
|
nsresult rv = NS_OK;
|
2002-02-16 04:19:24 +03:00
|
|
|
ReadSegmentsState state;
|
|
|
|
state.mThisStream = this;
|
|
|
|
state.mOffset = 0;
|
|
|
|
state.mWriter = aWriter;
|
|
|
|
state.mClosure = aClosure;
|
|
|
|
state.mDone = PR_FALSE;
|
|
|
|
|
2006-01-02 05:30:32 +03:00
|
|
|
PRUint32 len = mStreams.Count();
|
2003-01-29 09:40:16 +03:00
|
|
|
while (mCurrentStream < len && aCount) {
|
2002-04-19 02:02:09 +04:00
|
|
|
PRUint32 read;
|
2006-01-02 05:30:32 +03:00
|
|
|
rv = mStreams[mCurrentStream]->ReadSegments(ReadSegCb, &state, aCount, &read);
|
2002-02-16 04:19:24 +03:00
|
|
|
|
2003-01-29 09:40:16 +03:00
|
|
|
// XXX some streams return NS_BASE_STREAM_CLOSED to indicate EOF.
|
2006-01-02 05:30:32 +03:00
|
|
|
// (This is a bug in those stream implementations)
|
2002-04-19 02:02:09 +04:00
|
|
|
if (rv == NS_BASE_STREAM_CLOSED) {
|
2006-01-02 05:30:32 +03:00
|
|
|
NS_NOTREACHED("Input stream's Read method returned NS_BASE_STREAM_CLOSED");
|
2003-01-29 09:40:16 +03:00
|
|
|
rv = NS_OK;
|
|
|
|
read = 0;
|
2002-04-01 09:06:59 +04:00
|
|
|
}
|
2002-04-19 02:02:09 +04:00
|
|
|
|
2003-01-29 09:40:16 +03:00
|
|
|
// if |aWriter| decided to stop reading segments...
|
|
|
|
if (state.mDone || NS_FAILED(rv))
|
2002-02-16 04:19:24 +03:00
|
|
|
break;
|
2003-01-29 09:40:16 +03:00
|
|
|
|
|
|
|
// if stream is empty, then advance to the next stream.
|
2002-04-19 02:02:09 +04:00
|
|
|
if (read == 0) {
|
|
|
|
++mCurrentStream;
|
|
|
|
mStartedReadingCurrent = PR_FALSE;
|
|
|
|
}
|
2003-01-29 09:40:16 +03:00
|
|
|
else {
|
|
|
|
NS_ASSERTION(aCount >= read, "Read more than requested");
|
|
|
|
state.mOffset += read;
|
|
|
|
aCount -= read;
|
|
|
|
mStartedReadingCurrent = PR_TRUE;
|
|
|
|
}
|
2002-02-16 04:19:24 +03:00
|
|
|
}
|
2002-04-19 02:02:09 +04:00
|
|
|
|
2003-01-29 09:40:16 +03:00
|
|
|
// if we successfully read some data, then this call succeeded.
|
2002-02-16 04:19:24 +03:00
|
|
|
*_retval = state.mOffset;
|
2003-01-29 09:40:16 +03:00
|
|
|
return state.mOffset ? NS_OK : rv;
|
2002-02-16 04:19:24 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
NS_METHOD
|
|
|
|
nsMultiplexInputStream::ReadSegCb(nsIInputStream* aIn, void* aClosure,
|
|
|
|
const char* aFromRawSegment,
|
|
|
|
PRUint32 aToOffset, PRUint32 aCount,
|
|
|
|
PRUint32 *aWriteCount)
|
|
|
|
{
|
|
|
|
nsresult rv;
|
|
|
|
ReadSegmentsState* state = (ReadSegmentsState*)aClosure;
|
|
|
|
rv = (state->mWriter)(state->mThisStream,
|
|
|
|
state->mClosure,
|
|
|
|
aFromRawSegment,
|
|
|
|
aToOffset + state->mOffset,
|
|
|
|
aCount,
|
|
|
|
aWriteCount);
|
2003-01-29 09:40:16 +03:00
|
|
|
if (NS_FAILED(rv))
|
2002-02-16 04:19:24 +03:00
|
|
|
state->mDone = PR_TRUE;
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* readonly attribute boolean nonBlocking; */
|
|
|
|
NS_IMETHODIMP
|
2002-03-12 03:59:06 +03:00
|
|
|
nsMultiplexInputStream::IsNonBlocking(PRBool *aNonBlocking)
|
2002-02-16 04:19:24 +03:00
|
|
|
{
|
2006-01-02 05:30:32 +03:00
|
|
|
PRUint32 len = mStreams.Count();
|
|
|
|
for (PRUint32 i = 0; i < len; ++i) {
|
|
|
|
nsresult rv = mStreams[i]->IsNonBlocking(aNonBlocking);
|
2002-02-16 04:19:24 +03:00
|
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// If one is non-blocking the entire stream becomes non-blocking
|
2006-01-02 05:30:32 +03:00
|
|
|
// (except that we don't implement nsIAsyncInputStream, so there's
|
|
|
|
// not much for the caller to do if Read returns "would block")
|
2002-02-16 04:19:24 +03:00
|
|
|
if (*aNonBlocking)
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* void seek (in PRInt32 whence, in PRInt32 offset); */
|
|
|
|
NS_IMETHODIMP
|
2004-04-13 18:37:53 +04:00
|
|
|
nsMultiplexInputStream::Seek(PRInt32 aWhence, PRInt64 aOffset)
|
2002-02-16 04:19:24 +03:00
|
|
|
{
|
2006-01-02 05:30:32 +03:00
|
|
|
if (NS_FAILED(mStatus))
|
|
|
|
return mStatus;
|
|
|
|
|
2002-02-16 04:19:24 +03:00
|
|
|
nsresult rv;
|
|
|
|
|
|
|
|
// rewinding to start is easy, and should be the most common case
|
|
|
|
if (aWhence == NS_SEEK_SET && aOffset == 0)
|
|
|
|
{
|
|
|
|
PRUint32 i, last;
|
|
|
|
last = mStartedReadingCurrent ? mCurrentStream+1 : mCurrentStream;
|
|
|
|
for (i = 0; i < last; ++i) {
|
2006-01-02 05:30:32 +03:00
|
|
|
nsCOMPtr<nsISeekableStream> stream = do_QueryInterface(mStreams[i]);
|
2002-02-16 04:19:24 +03:00
|
|
|
NS_ENSURE_TRUE(stream, NS_ERROR_NO_INTERFACE);
|
|
|
|
|
|
|
|
rv = stream->Seek(NS_SEEK_SET, 0);
|
|
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
}
|
|
|
|
mCurrentStream = 0;
|
|
|
|
mStartedReadingCurrent = PR_FALSE;
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
// other Seeks not implemented yet
|
|
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* PRUint32 tell (); */
|
|
|
|
NS_IMETHODIMP
|
2004-04-13 18:37:53 +04:00
|
|
|
nsMultiplexInputStream::Tell(PRInt64 *_retval)
|
2002-02-16 04:19:24 +03:00
|
|
|
{
|
2006-01-02 05:30:32 +03:00
|
|
|
if (NS_FAILED(mStatus))
|
|
|
|
return mStatus;
|
|
|
|
|
2002-02-16 04:19:24 +03:00
|
|
|
nsresult rv;
|
2011-04-01 04:15:27 +04:00
|
|
|
PRInt64 ret64 = 0;
|
2002-02-16 04:19:24 +03:00
|
|
|
PRUint32 i, last;
|
|
|
|
last = mStartedReadingCurrent ? mCurrentStream+1 : mCurrentStream;
|
|
|
|
for (i = 0; i < last; ++i) {
|
2006-01-02 05:30:32 +03:00
|
|
|
nsCOMPtr<nsISeekableStream> stream = do_QueryInterface(mStreams[i]);
|
2002-02-16 04:19:24 +03:00
|
|
|
NS_ENSURE_TRUE(stream, NS_ERROR_NO_INTERFACE);
|
|
|
|
|
2004-04-13 18:37:53 +04:00
|
|
|
PRInt64 pos;
|
2002-02-16 04:19:24 +03:00
|
|
|
rv = stream->Tell(&pos);
|
|
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
2004-04-13 18:37:53 +04:00
|
|
|
ret64 += pos;
|
2002-02-16 04:19:24 +03:00
|
|
|
}
|
2004-04-13 18:37:53 +04:00
|
|
|
*_retval = ret64;
|
|
|
|
|
2002-02-16 04:19:24 +03:00
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* void setEOF (); */
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsMultiplexInputStream::SetEOF()
|
|
|
|
{
|
|
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
|
|
}
|
|
|
|
|
2010-06-10 22:11:11 +04:00
|
|
|
nsresult
|
2002-02-16 04:19:24 +03:00
|
|
|
nsMultiplexInputStreamConstructor(nsISupports *outer,
|
|
|
|
REFNSIID iid,
|
|
|
|
void **result)
|
|
|
|
{
|
|
|
|
*result = nsnull;
|
|
|
|
|
|
|
|
if (outer)
|
|
|
|
return NS_ERROR_NO_AGGREGATION;
|
|
|
|
|
2010-07-05 13:42:18 +04:00
|
|
|
nsMultiplexInputStream *inst = new nsMultiplexInputStream();
|
2002-02-16 04:19:24 +03:00
|
|
|
if (!inst)
|
|
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
|
|
|
|
NS_ADDREF(inst);
|
|
|
|
nsresult rv = inst->QueryInterface(iid, result);
|
|
|
|
NS_RELEASE(inst);
|
|
|
|
|
|
|
|
return rv;
|
|
|
|
}
|
2010-10-21 22:36:13 +04:00
|
|
|
|
|
|
|
PRBool
|
|
|
|
nsMultiplexInputStream::Read(const IPC::Message *aMsg, void **aIter)
|
|
|
|
{
|
|
|
|
using IPC::ReadParam;
|
|
|
|
|
|
|
|
PRUint32 count;
|
|
|
|
if (!ReadParam(aMsg, aIter, &count))
|
|
|
|
return PR_FALSE;
|
|
|
|
|
|
|
|
for (PRUint32 i = 0; i < count; i++) {
|
|
|
|
IPC::InputStream inputStream;
|
|
|
|
if (!ReadParam(aMsg, aIter, &inputStream))
|
|
|
|
return PR_FALSE;
|
|
|
|
|
|
|
|
nsCOMPtr<nsIInputStream> stream(inputStream);
|
|
|
|
nsresult rv = AppendStream(stream);
|
|
|
|
if (NS_FAILED(rv))
|
|
|
|
return PR_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!ReadParam(aMsg, aIter, &mCurrentStream) ||
|
|
|
|
!ReadParam(aMsg, aIter, &mStartedReadingCurrent) ||
|
|
|
|
!ReadParam(aMsg, aIter, &mStatus))
|
|
|
|
return PR_FALSE;
|
|
|
|
|
|
|
|
return PR_TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
nsMultiplexInputStream::Write(IPC::Message *aMsg)
|
|
|
|
{
|
|
|
|
using IPC::WriteParam;
|
|
|
|
|
|
|
|
PRUint32 count = mStreams.Count();
|
|
|
|
WriteParam(aMsg, count);
|
|
|
|
|
|
|
|
for (PRUint32 i = 0; i < count; i++) {
|
|
|
|
IPC::InputStream inputStream(mStreams.ObjectAt(i));
|
|
|
|
WriteParam(aMsg, inputStream);
|
|
|
|
}
|
|
|
|
|
|
|
|
WriteParam(aMsg, mCurrentStream);
|
|
|
|
WriteParam(aMsg, mStartedReadingCurrent);
|
|
|
|
WriteParam(aMsg, mStatus);
|
|
|
|
}
|